.card {
  width : 500px;
  margin: 2em auto;
  padding: 1rem;
  border: solid;
  border-color: #e4e7ec;
  border-width: 1px;
}

.card-header {
  padding: 0px;
  text-align: center;
  background-color:rgb(248, 170, 0);
}

.card-block {
  padding: 1rem;
}

.introduce {
  width: 150px;
}

.content {
  width: 150px;
}

.box {
    margin-top: 5px;
}